D&D4 Wiki

Retraining is available to a player character every time the character gains a level. A character can remove a single feat, power, or skill, and replace it with a different one.

Some classes allow replacement of powers at certain levels as a class feature. That is in addition to retraining, so a character can still swap a feat, a skill, or a second power at those levels.

Retraining a feat[]

The removed feat cannot be a prerequisite for any of the character's other attributes, and cannot be a bonus feat granted by class, paragon path, or epic destiny feature.

The character must meet the prerequisites of the new feat. Heroic tier and paragon tier feats can be replaced by higher tier feats.[U :7/2008] For example, a character that becomes level 11 can gain a paragon tier feat, and can retrain to remove a heroic tier feat and replace it with another paragon tier feat.

Retraining a power[]

The removed power cannot be a class feature power, or gained from a paragon path or epic destiny.

The new power must match the removed power's type: at-will attack, encounter attack, daily attack, or utility. It must also be from the same class as the removed power, and must be the same level or lower.

Retraining a skill[]

The removed skill cannot be a prerequisite for any of the character's other attributes, and must have been chosen from the character's class skill list. Single skills predetermined by class, such as Thievery for rogues, cannot be retrained. If the class offers a choice of predetermined skills, such as Dungeoneering or Nature for rangers, one can only be replaced by the other. The removed skill is no longer trained.

The new skill must be from the character's class skill list. The character becomes trained in the new skill.[PH:28]